Mill Springs Blue
What Mill Springs Blue Actually Looks Like
Mill Springs Blue reads as a soft, grayed teal, somewhere between a dusty blue and a weathered sage. It sits firmly in the mid-tone range, deep enough to feel purposeful on a wall but not so dark that it closes a room in. Think of aged copper or sea glass left in the sun for a season. The gray in it keeps things calm rather than punchy.
Mill Springs Blue Undertones
The color carries green and teal undertones beneath its blue surface. That green pull is what gives it a slightly earthy, organic quality rather than a cool oceanic one. In warm incandescent light the green comes forward more noticeably. In cooler daylight the blue takes over and the color reads closer to a classic slate teal.
Where Mill Springs Blue Works Best
Mill Springs Blue works well in spaces where you want a color that feels considered without being loud. It suits living rooms, bedrooms, dining rooms, and home offices. Because its LRV places it in the mid-tone range, it holds up in rooms with decent natural light and does not require a sun-drenched space to look intentional. In a dim or north-facing room it can shift darker and moodier, which can actually work well in a bedroom or library setting. It is less ideal in very small bathrooms with no natural light, where its depth can feel heavy.
Where to put Mill Springs Blue
On a living room wall Mill Springs Blue creates a grounded, settled backdrop. Pair it with natural wood tones and off-white trim to let the teal-green quality breathe. Linen upholstery and warm brass hardware sit well against it without fighting the color.
In a bedroom this color earns its place. It is calming without feeling clinical, and the gray in it keeps the mood from tipping into anything too vibrant for sleep. Use it on all four walls for a cocooning effect, or limit it to a single accent wall if you prefer something lighter.
A dining room painted in Mill Springs Blue feels collected and a little historic, which suits the color's place in Benjamin Moore's Historical Collection. Warm candlelight will draw out the green undertone and give the room a richly atmospheric quality in the evening.
The color is focused without being sterile, making it a solid choice for a workspace. It does not distract, and its depth gives the room a sense of intention. Make sure the room has reasonable daylight, since in low or artificial light the color darkens considerably.
What to Pair With Mill Springs Blue
No specific coordinating colors are listed in our database for this color, so pairing suggestions below draw from general color principles and the color's own character.
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Colors that clash with Mill Springs Blue
Mill Springs Blue carries a cool gray-green base that can conflict with heavily orange or yellow-toned wood floors and cabinetry, making both the wood and the wall color look slightly off.
A stark, blue-white trim can amplify the cool side of Mill Springs Blue in a way that feels harsh rather than crisp, particularly in north-facing light.
Common questions
Mill Springs Blue has the Benjamin Moore code HC-137, hex #7DA19A, and a precise LRV of 33.57, placing it firmly in the mid-tone range.
It depends on your light source. In cooler daylight or north-facing light it reads closer to a dusty blue-teal. In warm incandescent or evening light the green undertone becomes more prominent and the color takes on a slight sage quality.
It can, but be aware that its mid-tone depth will shift darker in low light, creating a moodier, almost slate-like appearance. That can be a feature in a bedroom or dining room, but in a small windowless space it may feel heavier than intended.
For walls, eggshell is the most versatile finish. It gives enough sheen to let the color develop properly without highlighting imperfections. Use a semi-gloss or satin on trim to create clear contrast with the wall.